M o t h e r b o a r d F e a t u r e s & U p g r a d e s
5/4 OWNER’S HANDBOOK
Processor
Speed
Jumper block PL19
BF1
BF0
FS
PW2 PW1 PW0
Pentium
90 MHz
High
High
In
In
In
In
Pentium
100 MHz
High
High
Out
In
In
In
Pentium
120 MHz
High
Low
In
In
In
In
Pentium
133 MHz
High
Low
Out
In
In
In
Pentium
150 MHz
Low
Low
In
In
In
In
Pentium
166 MHz
Low
Low
Out
In
In
In
Pentium
200 MHz
Low
High
Out
In
In
In
Pentium/MMX
166 MHz
Low
Low
Out
Out
Out
Out
Pentium/MMX
200 MHz
Low
High
Out
Out
Out
Out
Pentium/MMX
233 MHz
High
High
Out
Out
Out
Out
On-board video disabling (PL19)
If you install a video adapter expansion card, the computer should
automatically detect this and disable the on-board video adapter. If
for some reason this does not happen, and you experience problems
with a newly-fitted card, you can manually disable the on-board
video adapter by removing the
VGA
jumper from jumper block
PL19
.
Audio disabling (PL19)
The on-board audio system can be disabled by removing the
AUD
jumper from jumper block
PL19
. Disabling the audio system frees
the interrupt and DMA channel used by that system (normally
IRQ5 and DMA1).
